Exercise treadmill



FIG. 1 is a perspective view of an exercise treadmill showing our newdesign;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The ornamental design for an exercise treadmill, as shown and described.